A Brief Overview Of AbrahamGod chose Abraham`s family to weave His scarlet thread
through the linen of humanity. It was through Abraham`s
descendants that the Jewish nation would arise, a people
who would receive the covenant of the Lord, and that one of
those descendants would be the Savior, not only for the
Jews but for the whole world.
Abraham lived in the city of Ur (capital of the ancient
kingdom of Sumer). Sometime around 2,000 BC. God called
Abraham to leave his home and go to a new land that God
would show Him. The Bible traces Abraham`s steps from Ur to
Haran (north of Canaan), through the land of Canaan, into
Egypt, and back into Canaan (which later became Israel).

https://www.bible-history.com/old-testament/abraham.html

Abrahams Faith Tested With SacrificeAs Abraham grew stronger in faith, God told him to offer
his son Isaac as a burnt offering to prove his faith (Gen
22), Abraham obeyed and brought Isaac to Mount Moriah, laid
him on the altar and at the last minute the Lord told him
not to kill Isaac and gave him a ram for the sacrifice.
Here we see Abraham`s faith (Heb 11:17-19) and a beautiful
picture of Christ. The Bible calls Abraham a friend of God:
Isa 41:8 "But you, Israel, are My servant, Jacob whom I
have chosen, the descendants of Abraham My friend.

https://www.bible-history.com/old-testament/abraham.html

Abrams People Would Be Oppressed 400 YearsGen 15:13-14 Then He said to Abram: "Know certainly that
your descendants will be strangers in a land that is not
theirs, and will serve them, and they will afflict them
four hundred years. "And also the nation whom they serve I
will judge; afterward they shall come out with great
possessions."

https://www.bible-history.com/old-testament/abraham.html

Circumcision The Reminder Of The CovenantCircumcision was the seal and reminder of the covenant, and
so all of Abraham`s male descendants would be circumcised
to remind them that God would someday fulfill all the
promises that He made to Abraham. Notice that Abraham
believed before he was circumcised. Faith came before
works. This is an important point that Paul makes in the
book of Romans that salvation is by grace through faith
alone (Rom 4).

https://www.bible-history.com/old-testament/abraham.html

Destruction Of Sodom And GomorrahThere was a very beautiful yet wicked place in Canaan
called Sodom and Gomorrah and the Lord told Abraham that He
was going to destroy it but Abraham pleaded with God to
spare the sinful cities for that is where his nephew Lot
lived. God sent an angel to rescue Lot and his family but
destroyed the cities because of their homosexuality and
other abominations.

https://www.bible-history.com/old-testament/abraham.html

God Established His Covenant With AbrahamIt was with Abraham that God established His covenant. This
was God`s promise:
Gen 12:1-3 Now the LORD had said to Abram: "Get out of your
country, from your family and from your father`s house, to
a land that I will show you. I will make you a great
nation; I will bless you and make your name great; and you
shall be a blessing. I will bless those who bless you, and
I will curse him who curses you; and in you all the
families of the earth shall be blessed."

https://www.bible-history.com/old-testament/abraham.html

God Promised Abraham And Sarah A SonGod promised to give Abraham a son through his wife Sarah
who was barren (unable to bear children). Through this son,
a mighty nation would arise and also an uncountable amount
of descendants, and one of those descendants would be a
blessing to all the nations in the world.
This promise seemed impossible because they were so old but
Abraham believed what God said, though later he doubted and
tried to force God`s hand by having a son through Sarah`s
servant girl, Hagar. In ancient times this was accepted,
but not in God`s sight. It violated His law for marriage
(Gen 2), and Abraham suffered greatly for his sin.